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http://dx.doi.org/10.4313/JKEM.2008.21.3.279

A Study on the Effects of CNC Addition on Electrochemical Properties of Lead-acid Battery  

Kim, Jee-Hoon (엔바로테크(주) 부설연구소)
Mun, Jun-Ho (엔바로테크(주) 부설연구소)
Moon, Seong-Yong (엔바로테크(주) 부설연구소)
Ku, Bon-Keun ((주)엔비 기술연구소)
Kim, Ki-Won (경상대학교 공과대학 나노.신소재공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.21, no.3, 2008 , pp. 279-285 More about this Journal
Abstract
CNC (Carbon Nano Colloid) was used as an additive to the positive electrode to improve the discharge performance of sealed lead-acid batteries, The cathode active material ($PbO_2$) has a relatively low utility of less than 60 % compared with other kind of batteries, such as Ni-MH and Lithium ion, In this study, to overcome the above-mentioned problem we investigated the effects of CNC addition on the enhancement of electrical connection with not-utilized $PbO_2$ and resultantly electrical conductivity of electrode, We examined low rate discharge capacities, high rate discharge capacities and internal resistances of the batteries containing various amounts of CNC. From these results, we found out that the addition of CNC into the positive electrode made a significant improvement in high rate discharge capacity, We also suggested the optimum content of CNC material in positive electrode.
Keywords
CNC; Carbon nano colloid; Graphite; Lead acid battery;
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